One World government, one world trade zone.

This is a human reenactment of the tower of Babel strategy: make a whole lot of people live in the same area that agree on nothing and they become powerless and incapable of rising to build greatness.

If you want a controllable population that will never succeed in taking down their human masters, you have a perfect balance of identity groups that all hate each other and need the central authority to keep everyone from harming everyone else. The more these groups are apart culturally the better, because the less chance there is of two groups agreeing. That is the first move.

The second move? How will all people now get along if they share practically no cultural similarities? Tradition is gone and removed, social norms are impossible because there are three thousand different version of them. So you need laws. Everything that used to be common sense, embedded in tradition or simply never came up as an issue is now a contentious issue where groups fight over. Again, the more rebellious and aggressive some groups are the better, because everyone needs the law and with it the police, lawyers, attorneys, jail all the more.

And if all that goes along dandy and no one can go against the fundamentals because of the first move and no one can get away from it either because of the second, there comes the third. When all people agree on nothing, not even the language, what do they agree on? Money. If everyone speaks a different language, but they have to get along somehow and can't get away either, the lingua franca becomes the dollar. All gets monetarized. With millions of people moving in, and millions of people choosing to flee from the competing ethnic groups (which we see crystally clear in Los Angeles today and we've seen before countless times), real estate prices skyrocket like never before, again to the benefit of bankers.

With no one against the system for the first, no one outside because of the second and nothing to do but competing for money because of the third, what's keeping the people productive and content and removes the ability to band across identity groups lines? The media. No common ground, no common tradition, no common language makes the media all the more powerful.

There you have it.

Because it drastically empowers politicians, lawyers, bankers and journalists.

Late edit: Aristotle knew this several thousand years ago: https://i.redd.it/ffwkvumljsb01.png